The Role of Rating Agencies in CMBS Loans
In the world of CMBS (Commercial Mortgage-Backed Securities) loans, rating agencies play a crucial role in assessing credit risk and enabling the trading and securitization process. Randy Efron from Skylatus Property Capital explains their importance in this episode of the CMBS loan series for commercial multifamily and hospitality real estate.
What Is a Rating Agency?
Rating agencies such as Standard & Poor’s, Moody’s, and Fitch evaluate the likelihood that borrowers will repay their debt and assign credit ratings accordingly. These ratings reflect the risk of default and help investors understand the risk profile of the bonds issued against the loans.
How Rating Agencies Work in CMBS
When a CMBS lender originates a loan, it plans to pool it with other loans and sell the collective pool as bonds in the capital markets. The rating agencies assign ratings to different “tranches” or sections of this pool, reflecting their varying risk levels.
Visualizing Ratings: The Skyscraper Analogy
Imagine the CMBS loan pool as a 100-story skyscraper:
The first 70 floors represent the loan pool (if the average LTV is 70%).
Floors 71 to 100 represent the equity cushion backing the loans.
The lower floors (safer bonds) have higher credit ratings and lower yields. The higher floors (riskier bonds) have lower ratings but offer higher yields to compensate investors for the increased risk.
Risk and Yield Differences
For example, bond investors owning floors 20-30 (20-30% LTV) face significantly less risk than those owning floors 60-70 (60-70% LTV), so their returns differ accordingly. Payment priority follows this safety hierarchy—lower floors get paid first during loan repayments, protecting investment-grade bondholders more than riskier tranches.
Impact of Declining Property Values
If property values fall:
The highest floors (equity) are first to get “wiped out.”
Losses then cascade downward through the bond tranches, hitting riskier (higher) floors first.
Safer, lower floors retain value longer, maintaining creditworthiness and payment security for their holders.
Why Understanding Rating Agencies Matters
Borrowers should understand that CMBS ratings influence:
The interest rates on loan tranches.
The securitization structure.
Risk exposure to bondholders and loan originators.
Rating agencies’ ongoing evaluations of property performance and loan quality affect credit ratings over the life of the CMBS, informing investors and impacting financing costs.
For deeper insights on CMBS structures and financing, contact Randy Efron at randy.efron@skylatus.com or visit Skylatus Property Capital.




